Home
Class 12
PHYSICS
A long solenoid has n turns per unit len...

A long solenoid has n turns per unit length and carries a current `i = i_(0) sin omega t`. A coil of N turns and area A is mounted inside the solenoid and is free to rotate about its diameter that is perpendicular to the axis of the solenoid. The coil rotates with angular speed `omega` and at time t = 0 the axis of the coil coincides with the axis of the solenoid as shown in figure. Write emf induced in the coil as function of time.

Text Solution

Verified by Experts

The correct Answer is:
`mu_(0)i_(0)NnA cos (2 omegat)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    ARIHANT|Exercise Level 2|39 Videos

  • ELECTROMAGNETIC INDUCTION

    ARIHANT|Exercise Level 3|12 Videos

  • CURRENT ELECTRICITY

    ARIHANT|Exercise Current Electricity|105 Videos

  • ELECTROSTATICS

    ARIHANT|Exercise Level 3|59 Videos

Similar Questions

Explore conceptually related problems

A long solenoid has 800 turns per metre length of solenoid A current of 1.6 A flow through it. The magnetic induction at the end of the solenoid on its axis is

A long solenoid has n turns per metre and current IA is flowing through it. The magnetic field induciton at the ends of the solenoid is

A long solenoid has a radius a and number of turns per unit length is n . If it carries a current i, then the magnetic field on its axis is directly proportional to

A long straight solenoid has n turns per unit length. An alternating current I = I_(m) sin omega t flows throught it. Find the displacement current density as a function of the distnace r from the solenoid equals R .

An air-solenoid has 500 turns of wire in its 40 cm length. If the current in the wire be 1.0 ampere then the magnetic field on the axis inside the solenoid is -

The current in a long solenoid of radius R and having n turns per unit length is given by i= i_0 sin omega t . A coil having N turns is wound around it near the centre. Find (a) the induced emf in the coil and (b) the mutual inductance between the solenoid and the coil.